“The entire Letterkenny family is mourning this loss,” the depot commander, Col. Stephen Ledbetter, said in a statement. “We continue to keep the families and all of our teammates in our thoughts and prayers.”

Employees evacuate the area following an incident Thursday, July 19, 2018, at Letterkenny Army Depot in Chambersburg, Pa.. A small explosion Thursday in a vehicle shop at the Army depot injured at least four workers, three of them seriously, officials said. (Markell DeLoatch/Public Opinion via AP)(Photo: Markell DeLoatch, AP)